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Claim this listing3.9
94 Google reviews
1–2 days
Typical install time
£7,500
BUS grant amount
IZ Energy Services Ltd is an MCS certified air source installer based in City of London. They are registered with the Boiler Upgrade Scheme, meaning they can help you claim up to £7,500 towards your installation.
Based in City of London, IG11 7BG
Areas served:
3.9
94 Google reviews
Based on verified Google reviews
Lorraine White
Have had IZ Energy here for two days for remedial works.The work is terrible the front of my house is now two tone different texture and different shade of grey both were pointed out and told it will be fine when paint dry. Numerous other faults like lead sheet on leaking end of guttering.Would have given no stars if possible. Future governments need to makesure they never get a contract again
John Grimes
Disgusting Treatment of Installers – Avoid at All Costs I am an installer who carried out work for IZ Energy Services Ltd and I still have not been paid. This company has a clear pattern of not paying installers on time. When you ask for your money, they ignore your calls, stop replying to messages, and lie repeatedly about payment dates. They are highly unprofessional and expect people to work for free. Promises mean nothing to them, and they have no respect for tradesmen or contractors. Chasing payment from them is a complete waste of time. Third-class people running a third-class operation. I strongly warn any installer or contractor to stay well away from IZ Energy Services Ltd unless you want to be unpaid and messed around.
David Long
I simply cannot recommend this company enough. High quality workmanship, polite, tidy, nothing was ever a problem I could go on & on. Javed and his team were a pleasure to deal with throughout. Any small issues that cropped up during the works were swiftly dealt with. I am beyond delighted with the result. Thankyou all ⭐⭐⭐⭐⭐
Ian Clemit
The “Team” engaged with me, talking through any worries or concerns I had about the project. They showed a high degree of professionalism and competence. The work rate is phenomenal, the final finish is of a very high standard with the attention to detail amazing, thanks Guys for all you have done.
abdul hafeez
IZ Energy Ltd installed under floor and loft insulation in my home under government green home grant. IZ energy guided me to apply for the grant. There was delay from the Government side to approve the Grant. IZ Energy customer service team follow up with Green home grant scheme and kept me updated throughout.the process Once grant was approved, Irfan seamlessly arranged installation within a week of approval of grant. The workmanship of the the worker was exceptional. I had recently installed laminate flooring, they removed it carefully and after installation install it back perfectly. To be honest it look better than before. During the installation, IZ energy customer service manager inspected the quality of work. I would delightedly recommend IZ Energy
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We are MCS‑certified and registered with an approved consumer protection/competent person scheme, which is essential for quality assurance and to access grants like the Boiler Upgrade Scheme (BUS).
We carry out a detailed home assessment, including property type, insulation levels, existing heating system and available outdoor space, to confirm whether a heat pump is a good fit.
We design the system using a heat‑loss calculation for your home, then match the correct kW size and model (for example, air‑source vs ground‑source) so it runs efficiently and reliably.
Our fixed quote clearly lists the heat pump, cylinder, controls, labour, scaffolding (if needed), electrical work and any radiator or pipework upgrades, so you know exactly what you’re paying for.
Yes, as an MCS installer we can confirm your eligibility, apply for the BUS grant (worth up to £7,500) on your behalf and deduct it directly from your quote.
A typical air‑source heat pump installation takes around 2–5 days, and we’ll agree locations for the indoor and outdoor units, manage any planning considerations and keep you informed each day.
After the heat‑loss survey, we’ll advise if any radiators, pipework, electrics or hot‑water cylinder need upgrading so the system can run efficiently at lower flow temperatures.
Modern heat pumps are designed to be quiet and must meet UK noise regulations; we’ll position the unit to minimise any impact on you and your neighbours and comply with local planning rules.
You’ll get manufacturer warranties on the heat pump plus our workmanship guarantee, and we offer ongoing servicing and support to keep your system performing at its best.
We’ll estimate your likely annual running costs and potential savings based on your current fuel type, insulation level and tariffs, using real‑world performance data rather than lab figures.
Boiler Upgrade Scheme
Up to £7,500
off your heat pump installation
This installer handles the full BUS grant application — deducted directly from your quote. No upfront payment needed for the grant amount.
Scheme open until 2028 — limited funding available
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